France's "Great Wall Of Calais"

Around 200 Muslim migrants from Calais, the principal ferry crossing point between France and England, are successfully smuggled into Britain each week.

Masked gangs of people smugglers armed with knives, bats and tire irons have forced truck drivers to stop so that migrants can board their vehicles.

Before, it was just attempts to get on trucks. Now there is looting and willful destruction, tarpaulins are slashed, goods stolen or destroyed. Drivers go to work with fear in their bellies and the economic consequences are severe.

"They want to go to England because they can expect better conditions on arrival there than anywhere else in Europe or even internationally. ... They can easily find work outside the formal economy... --Mayor of Calais.

Building work has begun on a wall in the northern French city of Calais, a major transport hub on the edge of the English Channel, to prevent migrants from stowing away on cars, trucks, ferries and trains bound for Britain.